You couldn't be more wrong in your assessment, Michael.
Pelosi did what she had to do: Stop the GOP and Moscow Mitch from piecemealing the process. If she gave in early, we'd have gotten less and Corporate America would have had more. She didn't refuse to go along because she was not thinking of the neediest Americans; she refused to give in because she knew that half a loaf would become NO LOAF if she caved.
Smarten up! McConnell is legendary for welshing on deals and there was no reason that his "I'll give you half of what you want and we'll work on the rest in the New Year" deal would have been any different.